This DHT22 sensor has a capacitive humidity sensor and a temperature sensor. The humidity sensor measures from 0 to 99.9% RH with ±2% accuracy, while the temperature sensor operates between -40 to 80°C with ±0.5°C accuracy. Compared with the DHT11, the DHT22 is more precise and has a wider measurement range. Thanks to its built-in 8-bit microcontroller, the DHT22 converts the analogue readings from both sensors into digital signals, allowing it to output temperature and humidity data through a single pin for easy use in your projects. It is compatible with Arduino (With a Grove - Base Shield) or Raspberry Pi (Only with the Grove-Base HAT) Features * High accuracy and wide range of temperature and humidity measurements: * Humidity: 0 to 99.9 %RH with ±2% accuracy * Temperature: -40 to 80°C with an accuracy of ±0.5°C * Standby current supply as low as 40uA * Professional choice for relatively demanding applications: outperforms the basic DHT11D * Digital output of sensor data and I²C interface make it more versatile * Factory calibrated, easy to use, and backed by detailed wiki and documentation * Product Number: Seeed 101020019 Specifications Item Min Norm Max Unit Input voltage (VCC) 3.3 - 6 V I/O Logic Level - Based on VCC - V Measuring Current Supply 1 - 1.5 mA Standby Current Supply 40 - 50 uA Measuring range (Humidity) 0.05 - 0.99 RH Measuring range (Temperature) -40 - 80 °C Accuracy (Humidity) - - ±2% RH Accuracy (Temperature) - - ±0.5 °C Resolution (Humidity) - - 0.001 RH Resolution (Temperature) - - 0.1 °C Repeatability (Humidity) - - ±0.3% RH Repeatability (Temperature) - - ±0.2 °C Long-term Stability - - ±0.5% RH/year Signal Collecting Period - 2 - S Respond Time 1/e(63%) 6 - 20 S Signal pin mode - Digital - - Resources * Product Wiki * Eagle Format * PCB in PDF * Schematic in PDF Pinout Package Contents * 1x Grove - Temperature & Humidity Sensor Pro * 1x Grove Cable https://elecena.pl/product/27008599/grove-temperature-humidity-sensor-pro-dht22-am2302 2024-10-09 https://elecena.pl/product/27008599/grove-temperature-humidity-sensor-pro-dht22-am2302 2024-11-29 https://elecena.pl/product/27008599/grove-temperature-humidity-sensor-pro-dht22-am2302 2024-11-30 https://elecena.pl/product/27008599/grove-temperature-humidity-sensor-pro-dht22-am2302 2025-09-29 https://elecena.pl/product/27008599/grove-temperature-humidity-sensor-pro-dht22-am2302 2025-11-28 https://elecena.pl/product/27008599/grove-temperature-humidity-sensor-pro-dht22-am2302 2025-11-29